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900738

Sigma-Aldrich

PbS core-type quantum dots

fluorescence λem 1400 nm, 10 mg/mL in toluene

Synonym(s):

Fluorescent nanocrystals, Lead sulfide, PbS QDs

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About This Item

Linear Formula:
PbS
CAS Number:
1314-87-0
UNSPSC Code:
12352302
NACRES:
NA.23

form

liquid

Quality Level

100

concentration

10 mg/mL in toluene

fluorescence

λem 1400 nm

storage temp.

2-8°C

InChI

1S/Pb.H2S/h;1H2

InChI key

MIXDRAMRMDOQJH-UHFFFAOYSA-N

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Application

The size for our lead sulfide (PbS) quantum dots (QDs) varies between 2.5 to 8 nm and depending upon this, these QDs emit between 900-1600 nm. Our PbS QDs possess high quantum yield, sharp emission and exhibit narrow fluorescence band (full width at half maximum <100 nm), which make them suitable as light absorber or IR emitter in applications in solar cells, photodetectors and infrared light emitting diodes (LEDs).

signalword

Danger

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 1A - Skin Irrit. 2 - STOT RE 2 - STOT RE 2 Inhalation - STOT SE 3

target_organs

Central nervous system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

46.4 °F - closed cup

flash_point_c

8 °C - closed cup

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Xinzheng Lan et al.
Advanced materials (Deerfield Beach, Fla.), 28(2), 299-304 (2015-11-19)
A solution-based passivation scheme is developed featuring the use of molecular iodine and PbS colloidal quantum dots (CQDs). The improved passivation translates into a longer carrier diffusion length in the solid film. This allows thicker solar-cell devices to be built
Highly efficient quantum dot near-infrared light-emitting diodes.
Gong X, et al.
Nature Photonics, 10, 253-257 (2016)
Gerasimos Konstantatos et al.
Nature nanotechnology, 5(6), 391-400 (2010-05-18)
The detection of photons underpins imaging, spectroscopy, fibre-optic communications and time-gated distance measurements. Nanostructured materials are attractive for detection applications because they can be integrated with conventional silicon electronics and flexible, large-area substrates, and can be processed from the solution

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